/**
 * Copyright 2009 Henning Teek, Ingo Renner
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.bricket.repository.jpa.impl;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.orm.jpa.persistenceunit.MutablePersistenceUnitInfo;
import org.springframework.orm.jpa.persistenceunit.PersistenceUnitPostProcessor;

public class MergingPersistenceUnitPostProcessor implements PersistenceUnitPostProcessor {
	Map<String, List<String>> puiClasses = new HashMap<String, List<String>>();

	@Override
	public void postProcessPersistenceUnitInfo(MutablePersistenceUnitInfo pui) {
		List<String> classes = puiClasses.get(pui.getPersistenceUnitName());
		if (classes == null) {
			classes = new ArrayList<String>();
			puiClasses.put(pui.getPersistenceUnitName(), classes);
		}
		pui.getManagedClassNames().addAll(classes);
		classes.addAll(pui.getManagedClassNames());
	}
}
